تخمین پارامترهای کاهیدگی با استفاده شتابنگاشتهای زلزله بم(2003)

In the study, the strong motion records are used to obtain an estimate of attenuation of coda waves and spectral decay parameter for 9 station from 23 stations that is S/N rate good. Qc values have been computed at central frequencies of 1.5,3.0,6.0,12.0 and 18 Hz in the lapse time window of 20-30 sec using Sato’s single scattering model (1977) model .The frequency _dependence average Q= 18 f 1.12 c relationship has been obtained for the region and mean of spectral decay parameters estimated κ = 0.08 sec for two horizontal components.

کلیدواژه ها:

فاکتور کیفیت ، جذب کدا ، پارامتر افت طیفی ، بم